check engine SUZUKI SX4 2006 1.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 8B-75 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1361 / B1365: Curtain-Air Bag Circuit High ResistanceS6RW0D8204062
DTC B1361: Driver Curtain-Air Bag Circuit High Resistance
DTC B1365: Passenger Curtain-Air Bag Circuit High Resistance
Wiring Diagram
DTC Detecting Condition and Trouble Area
10
L04-20
L04-19
L04-21
L04-22
YEL/GRN
YEL/BLU
BLK/YEL
BRN/YELYEL/GRN
YEL/BLU
BLK/YEL
BRN/YEL “L395” “Q132”
11
12
“L04”
“Q102” “Q103”
“L04”
BLK
L04-28
6 8
7
RED
GRN“L313”L04-27
9
1
2 BLKWHT3
4
5
[A]
13
12V5V30V
14
I6RW0C820014-01
[A]: Shorting bar 5. Individual circuit fuse box No.1 10. SDM
1. Battery 6. Ignition switch 11. Driver side curtain-air bag (inflator) module
2. Fuse 7. “A/B” fuse 12. Passenger side curtain-air bag (inflator) module
3. Main fuse box 8. Junction block assembly 13. DC / DC converter
4. “IGN” fuse 9. Ground for air bag system 14. Back up capacitor
DTC detecting condition Trouble area
DTC B1361:
Driver curtain-air bag circuit is more than 3.8 Ω for more
than 4 sec.
DTC B1365:
Passenger curtain-air bag circuit is more than 3.8 Ω for
more than 4 sec.• Driver / passenger curtain-air bag circuit
• Driver / passenger curtain-air bag module
•SDM

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-76
DTC Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver / passenger curtain-air bag circuit check
1) With ignition switch turned OFF, remove rear quarter
upper trim of applicable side and disconnect applicable
side curtain-air bag (inflator) module connector.
2) Check for proper connection to applicable side curtain-
air bag (inflator) module at terminals in “Q102” or “Q103”
connector.
3) If OK, then connect special tools (A), (B) and (C) to
applicable side curtain-air bag (inflator) module
connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1361 or B1365 still
indicated?Go to Step 3. Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)(C)
(A)“Q102”, “Q103”
I7RW01822087-02

Downloaded from www.Manualslib.com manuals search engine 8B-77 Air Bag System:
3Driver / passenger curtain-air bag circuit check
1) Disconnect special tools from applicable side curtain-air
bag connector D or P.
2) With ignition switch turned OFF, disconnect SDM
connector “L04”.
3) Check for proper connection to SDM connector at
terminal “L04-19” and “L04-20” (for DTC B1361) or
terminal “L04-21” and “L04-22” (for DTC B1365).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
5) Measure resistance between “L04-19” and “Q103-2”
terminals, between “L04-20” and “Q103-1” terminals (for
DTC B1361).
6) Measure resistance between “L04-21” and “Q102-1”
terminals, between “L04-22” and “Q102-2” terminals (for
DTC B1365).
Is each measured resistance 1
Ω or less?Substitute a known-
good SDM and recheck.Go to Step 4. Step Action Yes No
“L04-19” “L04-20” “L04-21” “L04-22”
(A)1“Q103”, “Q102”
1 2
I6RW0C820015-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-78
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

4Floor harness circuit check for wagon model
1) With ignition switch turned OFF, remove rear inner trim
of right side and disconnect “L395” connector.
2) Check for proper connection to applicable side curtain-
air bag at terminal in “L395” connector.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L04-19” and “L395-4”
terminals, between “L04-20” and “L395-3” terminals (for
DTC B1361).
5) Measure resistance between “L04-21” and “L395-1”
terminals, between “L04-22” and “L395-2” terminals (for
DTC B1065).
Is each measured resistance 1
Ω or less?DTC B1361: Repair
high resistance or open
wire in “YEL/GRN” or
“YEL/BLU” circuit at
driver curtain-air bag
harness.
DTC B1365: Repair
high resistance or open
wire in “BLK/YEL” or
“BRN/YEL” circuit at
passenger curtain-air
bag harness.DTC B1361: Repair
high resistance or open
wire in “YEL/GRN” or
“YEL/BLU” circuit at
floor harness.
DTC B1365: Repair
high resistance or open
wire in “BLK/YEL” or
“BRN/YEL” circuit at
floor harness. Step Action Yes No
(A)
“L04-20” “L04-21” “L04-19”“L04-22”
“L395”
1
“L395-1”
“L395-2”“L395-3”“L395-4”
I7RW01822089-01

Downloaded from www.Manualslib.com manuals search engine 8B-79 Air Bag System:
DTC B1362 / B1366: Curtain-Air Bag Circuit Low ResistanceS6RW0D8204063
DTC B1362: Driver Curtain-Air Bag Circuit Low Resistance
DTC B1366: Passenger Curtain-Air Bag Circuit Low Resistance
Wiring Diagram
Refer to “DTC B1361 / B1365: Curtain-Air Bag Circuit High Resistance”.
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
DTC B1362:
Driver curtain-air bag circuit is less than 1.0 Ω for more
than 4 sec.
DTC B1366:
Passenger curtain-air bag circuit is less than 1.0 Ω for
more than 4 sec.• Driver / passenger curtain-air bag circuit
• Driver / passenger curtain-air bag module
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver / passenger curtain-air bag circuit check
1) With ignition switch turned OFF, remove rear quarter
upper trim of applicable side and disconnect applicable
side curtain-air bag (inflator) module connector.
2) Check for proper connection to applicable side curtain-
air bag (inflator) module at terminals in “Q102” or “Q103”
connector.
3) If OK, then connect special tools (A), (B) and (C) to
applicable side curtain-air bag (inflator) module
connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1362 or B1366 still
indicated?Go to Step 3. Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)(C)
(A)“Q102”, “Q103”
I7RW01822087-02

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-80
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

3Driver / passenger curtain-air bag circuit check
1) Disconnect special tools from applicable side curtain-air
bag connector “Q102” or “Q103”.
2) With ignition switch turned OFF, disconnect SDM
connector “L04”.
3) Check for proper connection to SDM connector at
terminal “L04-19” and “L04-20” (for DTC B1362) or
terminal “L04-21” and “L04-22” (for DTC B1366).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
5) Measure resistance between “L04-19” and “L04-20”
terminals (for DTC B1362) and between “L04-21” and
“L04-22” terminals (for DTC B1366).
Is each measured resistance infinity?Substitute a known-
good SDM and recheck.Go to Step 4.
4Floor harness circuit check for wagon model
1) With ignition switch turned OFF, remove rear inner trim
of right side and disconnect “L395” connector.
2) Check for proper connection to applicable side curtain-
air bag at terminal in “L395” connector.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L04-19” and “L04-20”
terminals (for DTC B1362) and between “L04-21” and
“L04-22” terminals (for DTC B1366).
Is each measured resistance infinity?DTC B1362: Repair
“YEL/GRN” circuit for
short to “YEL/BLU”
circuit at driver curtain-
air bag harness.
DTC B1366: Repair
“BLK/YEL” circuit for
short to “BRN/YEL”
circuit at passenger
curtain-air bag harness.DTC B1362: Repair
“YEL/GRN” circuit for
short to “YEL/BLU”
circuit at floor harness.
DTC B1366: Repair
“BLK/YEL” circuit for
short to “BRN/YEL”
circuit at floor harness. Step Action Yes No
(A)“L04-20” “L04-21” “L04-19”“L04-22”
1
I7RW01822090-01
(A)
“L04-20” “L04-21” “L04-19”“L04-22”“L395”
1
I7RW01822091-01

Downloaded from www.Manualslib.com manuals search engine 8B-81 Air Bag System:
DTC B1363 / B1367: Curtain-Air Bag Circuit Shorted to GroundS6RW0D8204064
DTC B1363: Driver Curtain-Air Bag Circuit Shorted to Ground
DTC B1367: Passenger Curtain-Air Bag Circuit Shorted to Ground
Wiring Diagram
Refer to “DTC B1361 / B1365: Curtain-Air Bag Circuit High Resistance”.
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
DTC B1363:
Driver curtain-air bag circuit has been shorted to ground
for more than 4 sec.
DTC B1367:
Passenger curtain-air bag circuit has been shorted to
ground for more than 4 sec.• Driver / passenger curtain-air bag circuit
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver / passenger curtain-air bag circuit check
1) With ignition switch turned OFF, remove rear quarter
upper trim of applicable side and disconnect applicable
side curtain-air bag (inflator) module connector.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminal “L04-19” and “L04-20” (for DTC B1363) or
terminal “L04-21” and “L04-22” (For DTC B1367).
4) Check for proper connection to applicable side curtain-
air bag (inflator) module connector at terminal in its
connector.
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
6) Measure resistance between “L04-19” terminal and body
ground, and between “L04-20” terminal and body ground
(for DTC B1363).
7) Measure resistance between “L04-21” terminal and
body ground, and between “L04-22” terminal and body
ground (for DTC B1367).
Is each measured resistance infinity?Substitute a known-
good SDM and recheck.Go to Step 3.
“L04-20” “L04-21” “L04-19”“L04-22”
1
(A)
I7RW01822092-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-82
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

3Floor harness circuit check for wagon model
1) With ignition switch turned OFF, remove rear inner trim
of right side and disconnect “L395” connector.
2) Check for proper connection to applicable side curtain-
air bag at terminal in “L395” connector.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L04-19” terminal and body
ground, and between “L04-20” terminal and body ground
(for DTC B1363).
5) Measure resistance between “L04-21” terminal and body
ground, and between “L04-22” terminal and body ground
(for DTC B1367).
Is each measured resistance infinity?DTC B1363: Repair
“YEL/GRN” or “YEL/
BLU” circuit for short to
ground at driver curtain-
air bag harness.
DTC B1367: Repair
“BLK/YEL” or “BRN/
YEL” circuit for short to
ground at passenger
curtain-air bag harness.DTC B1363: Repair
“YEL/GRN” or “YEL/
BLU” circuit for short to
ground at floor harness.
DTC B1367: Repair
“BLK/YEL” or “BRN/
YEL” circuit for short to
ground at floor harness. Step Action Yes No
“L04-20” “L04-21” “L04-19”“L04-22”“L395”
1
(A)
I7RW01822093-01

Downloaded from www.Manualslib.com manuals search engine 8B-83 Air Bag System:
DTC B1364 / B1368: Curtain-Air Bag Circuit Shorted to Power SupplyS6RW0D8204065
DTC B1364: Driver Curtain-Air Bag Circuit Shorted to Power Supply
DTC B1368: Passenger Curtain-Air Bag Circuit Shorted to Power Supply
Wiring Diagram
Refer to “DTC B1361 / B1365: Curtain-Air Bag Circuit High Resistance”.
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
DTC B1364:
Driver curtain-air bag circuit has been shorted to power
circuit for more than 4 sec.
DTC B1368:
Passenger curtain-air bag circuit has been shorted to
power circuit for more than 4 sec.• Driver / passenger curtain-air bag circuit
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Driver / passenger curtain-air bag circuit check
1) With ignition switch turned OFF, remove rear quarter
upper trim of applicable side and disconnect applicable
side curtain-air bag (inflator) module connector.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminal “L04-19” and “L04-20” (for DTC B1364) or
terminal “L04-21” and “L04-22” (for DTC B1368).
4) Check for proper connection to applicable side curtain-
air bag (inflator) module its connector at terminal in its
connector.
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
6) With ignition switch turned ON, measure voltage
between “L04-19” terminal and body ground, and
between “L04-20” terminal and body ground (for DTC
B1364).
7) Measure voltage between “L04-21” terminal and body
ground, and between “L04-22” terminal and body ground
(for DTC B1368).
Is each measured voltage 0 V?Substitute a known-
good SDM and recheck.Go to Step 3.
“L04-20” “L04-21” “L04-19”“L04-22”
1
(A)
I7RW01822094-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-84
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

3Floor harness circuit check for wagon model
1) With ignition switch turned OFF, remove rear inner trim
of right side and disconnect “L395” connector.
2) Check for proper connection to applicable side curtain-
air bag at terminal in “L395” connector.
3) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) With ignition switch turned ON, measure voltage
between “L04-19” terminal and body ground, and
between “L04-20” terminal and body ground (for DTC
B1364).
5) Measure voltage between “L04-21” terminal and body
ground, and between “L04-22” terminal and body ground
(for DTC B1368).
Is each measured voltage 0 V?DTC B1364: Repair
“YEL/GRN” or “YEL/
BLU” circuit for short to
power supply at driver
curtain-air bag harness.
DTC B1368: Repair
“BLK/YEL” or “BRN/
YEL” circuit for short to
power supply at
passenger curtain-air
bag harness.DTC B1364: Repair
“YEL/GRN” or “YEL/
BLU” circuit for short to
power supply at floor
harness.
DTC B1368: Repair
“BLK/YEL” or “BRN/
YEL” circuit for short to
power supply at floor
harness. Step Action Yes No
“L04-20” “L04-21” “L04-19”“L04-22”“L395”
1
(A)
I7RW01822095-01